First post, by DAVE86
Hello
I found this old post card on the flea market. Made in 1993, standard ISA 16 bit bus. It has a pair of seven segment display, lots of leds, some dip switches and one tactile switch. I could find any info about it. Has a lot of 74 series logic and some bcd to hex converter ICs.
It was a bit damaged when I got it. C17 cap was cracked or exploded and SW1 switch was missing. I fixed it up and tested in in a 486 mobo. It seems to work ok but it isn't exactly showing HEX numbers. I tested all the segments seperately and they ligth up ok.
It seems to display symbols (maybe). See first pic. The symbols aren't corresponding to award or ami post codes. I'm not familiar with the function of the leds either...
Has anyone seen this type of diagnostic card before?